|Institutions||University of Leipzig|
|Alma mater||University of Leipzig|
|Spouse||unnamed wife, unnamed wife, Catharina Schmuck|
|Children||Johann Friedrich, Anna Rosina, Gottfried Wilhelm|
Friedrich Leibniz (or Leibnütz; 1597–1652)  was a Lutheran  lawyer and a notary, registrar and professor of moral philosophy within Leipzig University. He was the father of Gottfried Leibniz.
He completed his master's degree at the University of Leipzig during 1622 and became an actuary in administration at the University. His first marriage in 1625 produced a son, Johann Friedrich, and a daughter, Anna Rosina. He was elected to the chair in moral philosophy at Leipzig in 1640. A childless marriage to a second wife ended with her death 1643. A subsequent 1644 marriage to Catharina Schmuck, a daughter of a well known lawyer (or professor of law) produced a son, the polymath Gottfried Wilhelm Leibniz.
|“||On Sunday 21 June [NS: 1 July] 1646, my son Gottfried Wilhelm is born into the world a quarter after six in the evening, in Aquarius.||”|
During 1646 Leibniz was vice chairman of the faculty of philosophy and also was Professor of Moral Philosophy at the University of Leipzig, in addition to employment as actuary. He possessed a collection of books of ancient source. He died in Leipzig.
|“||... a competent though not original scholar, who devoted his time to his offices and to his family as a pious, Christian father.||”|
- (possibly unreliable) Rodovid, a free multilingual family tree portal; Special:Tree Retrieved 2012-02-09
- Brandon C. Look. The Continuum Companion to Leibniz. - 528 pages Continuum International Publishing Group, 4 Aug 2011. ISBN 0826429750. Retrieved 2012-01-26.
- Brandon C. Look. (2007). Leibniz. Stanford Encyclopedia of Philosophy. Retrieved 2012-02-09
- Gregory Brown (Professor at University of Houston). Friedrich Leibniz. Leibniz Society of North America. Retrieved 2012-01-26.
- see references of Heinrich Schepers and Ronald Calinger; in Richard S. Westfall, The Galileo Project, Rice University. Retrieved 2012-01-27.
- Ariew, Roger. G. W. Leibniz, life and works. Cambridge Collections Online. In: Nicholas Jolley, The Cambridge companion to Leibniz. Cambridge University Press, 1995. doi:10.1017/CCOL0521365880.002. ISBN 0-521-36769-7. Retrieved 2012-01-26..
- Mitchel T. Keller et al. North Dakota State University. 58108-6050. Retrieved 2012-01-26.
- It is possible that the words "in Aquarius" refer to the Moon – the Sun in Cancer; Sagittarius rising (Ascendant). See Astro-Databank chart of Gottfried Leibniz.
- The original has "1/4 uff 7 uhr" but there is no reason to assume that in the 17th century this meant a quarter to seven. The quote is given by Hartmut Hecht in Gottfried Wilhelm Leibniz (Teubner-Archiv zur Mathematik Volume 2, 1992), in the first lines of chapter 2, Der junge Leibniz, p. 15; see H. Hecht, Der junge Leibniz; see also G. E. Guhrauer, G. W. Frhr. v. Leibnitz. B. 1. Breslau 1846, Anm. S. 4.
- E. J. Aiton, Leibniz : A biography (Bristol- Boston, 1984). In: MacTutor History of Mathematics, by J O'Connor and E F Robertson, University of St Andrews. Retrieved 2012-01-26
- Mathematics Genealogy Project entry for Friedrich Leibniz